- Collecting Rocks
- USGS informative article on rocks.
- Gem Guides Book Company
- Publishes data about rocks, minerals, gemstones, geology, fossils, dinosaurs, gem trails, rock collecting, jewelry crafts, and more.
- John F. Rakovan – Geology Professor
- Specializes in environmentally significant processes such as crystal growth, metal sorption, trace element partitioning and other surface mediated reactions.
- Mineral Resources Program
- Features funds for information related to mineral resources in Eatern, Central, and Western America.
- Minerals of the United States
- Searchable picture gallery of minerals in every state in the U.S.
- Perlite
- Provides information on the siliceous rock and its various applications.
- YupRocks
- Source for rock and mineral photography.
|